Upload Source Data Files

Upload Source Data Files

Use File Upload only when it is available for the selected Source Platform and, where applicable, the selected connection method or edition. The Supported Files section in Connect Stores defines the standard data entities and expected filenames eligible for that Source setup. Upload the listed files that correspond to the data included in the migration scope. Obtain them through the platform-specific procedure: some exports require Next-Cart technician assistance, including Weebly Reviews. An accepted filename does not establish that a native export button exists.

Supported Files defines the standard file scope

Do not add an unlisted entity file or repurpose another platform’s template. If the project requires a data type outside the displayed list, include that requirement in the Custom Service scope.

File Upload reads data from the files

File Upload does not establish a live data connection to the Source Platform. Next-Cart reads the migration data from the uploaded files, so platform credentials are not required for the File Upload method. A Source Store URL can still appear for some File Upload setups and can affect store-identity locking.

Open the correct preparation guide

Source Data Export Guides Check the exact Supported Files list and open the matching platform export guide.

Connection Setup Requirements Resolve Wix method choices, Lightspeed editions, and other setup decisions before preparing files.

Preserve the required file structure

Before upload:

• use the exact files listed under Supported Files for the selected Source setup;
• preserve the required filename, fields, identifiers, encoding, hierarchy, and relationships;
• do not rename a different export to mimic an expected filename;
• do not convert one platform’s export into another platform’s file structure unless the migration has an approved Custom scope for that conversion; and
• keep a protected working copy until migration validation is complete.

CSV, XLS, and XML

CSV, XLS, and XML are Custom Service Source Platform options with a Products-only included workflow.

Source Platform	Supported entity	Expected filename	Guide
CSV	Product	products.csv	Prepare CSV Source Data Files
XLS	Product	products.xls	Prepare XLS Source Data Files
XML	Product	products.xml	Prepare XML Source Data Files

The preparation guides include downloadable Product samples. Use the sample for the selected CSV, XLS, or XML Source option; keep a native platform export in its own required structure.

A structurally invalid Product file can still be accepted as an upload while the migration later reports 0/0, meaning no Source Product records were recognized and no Product records were migrated. Correct the structure against the corresponding file guide before retrying.

Verify upload readiness

Check	Pass condition
Source setup	The selected platform, method, and edition match the file workflow being used.
Supported Files	Every uploaded entity and filename appears in the Supported Files list for the selected Source setup. The migration scope determines which eligible listed files need to be provided.
Structure	Each file preserves the expected platform or Next-Cart template structure.
Upload	Next-Cart accepts the required files.
Record recognition	Migration progress shows recognized Source records rather than an unexpected 0/0.
Target setup	The Target connection is ready before continuing to Configuration.

Store URL behavior

File Upload does not automatically mean that the Source has no Store URL. Wix File Upload and Lightspeed Retail (S-Series), for example, still expose a Source Store URL field. CSV, XLS, and XML do not.

For paid migrations, URL locking follows the actual URL fields in the selected setup. Review Store URL Locking and Store Identity before advancing to Configuration.

If the file cannot be used

Problem	Corrective action
A file for an intended supported entity is missing	Follow the matching Source Data Export guide, including any required technician-assisted export. Do not infer an export method from the expected filename.
Filename or structure does not match	Re-export or rebuild from the correct platform/template source. Do not fix the problem by changing only the extension or inventing columns.
CSV, XLS, or XML reports 0/0	Correct the Products file against its dedicated template guide, re-upload it, and confirm that Source Product records are recognized.
Another entity is required	Add the data type and its handling to the approved Custom Service scope.
Connect Stores assigns another connection method	Stop the File Upload workflow and follow the method displayed for that selection.

If the required standard file cannot be produced or accepted, use Troubleshoot Connection Setup.

Next Steps

After the required Source files and Target setup are ready, click Continue to Configuration. Manual Test Connection is optional.